(homograph) groups information relating to one homograph within an entry.
xref
(cross reference) a reduced entry whose only function is to
point to another main entry (e.g. for forms of an irregular verb or
for variant spellings: was pointing to
be, or esthete to
aesthete).
affix
an entry for a prefix, infix, or suffix.
abbr
(abbreviation) an entry for an abbreviation.
supplemental
a supplemental entry (for use in dictionaries which
issue supplements to their main work in which they include
updated information about entries).
foreign
an entry for a foreign word in a monolingual dictionary.
sortKey
contains a (sortable) character sequence reflecting the
entry's alphabetical position in the printed dictionary.
any sequence of characters which, when sorted with the
other values, will produced the desired order; specifics of sort
key construction are application-dependent.